Dewald



E. DEWALD, Sa. SWlVEL PEUG--BONNECTOR.

APPUCATION FILED APR. 9, 1919.

atented Sept. 23, 1919. fi@J EDWARD DIEWA LD, SR.,

0]? CINCINNATI, OHIO, ASSIGNOR 0]? ONE-HALF T0 EDWRD ZDEWALD, JR., OFCINCINNATJ, CHIC.

SWIVEL-PLG CONNECTR.

Specification of Letters Patent. Patented Sept, 23, 1919,

Application filed April 9, 1919. Serial No. 288,794.

.To aZZ wwm it may conccm:

Bc 1t known that I, EDWARD DEWALD, Sr.,

a citizcn of the Unitcd States, rcsiding in mcinnati, in the connty ofHamilton and Stnteof Ohio,'have invcntcd new and nseful mprovcments inSwivei-Plug Connectors, of Which the foliowing is a specification.

An object of my invention is to produce an improved swivel plngconnecter for the clcctric cables extending from eloctrical devicessuch' as telephone, irons, drills, rivetors, etc., Which Will preventtwisting of the caolcs whiie the device to Which it is attachcd is inuse, and which Will also prcservc pcrfcct elcctricalconnection With thesource of supp]y regardless of the position its rotuting cicmnt takes.

This and othcr objeccs are attained in the swivoi plug connecterdescribed in the following specification and illustrated in the accompaning drawing in which Figure 1 is a side eJcvntion of my improvedconnecter.

Fig. 2 is 5130 a sidc elevaticn of my impIoVed connector but taken at aright angle to the view shown in Fig. 1, the outside casing or cover inboth views being shown broken away.

Fig. 3 is a transverse sectional vicw taken on thc line 3-?) of Fig. 1.

Fig. 4 is a transverse sectional view taken on the ]ine 44 0f Fig. 1.

My improvcd construction cOnsists of a framc 5 havin a screw sockct lu 6at its nppcr and and a rotatable membcr 7 journalcd therein, The framemny ho made of rub=bcr, fiber, giass, porcelain or othcr snit abicinsulating material, a circular bottom 8 and a circulr top 9 which areconnectcd.

16 is provided on the plug 6, beng connected at its ]oWer edge with aconducwr stIlp 17 which extends down the edge of side 10 to a contact-spring 18 which cm.

braces side 10 and which carries contact rollers 19 and 20. Thpserollers bear against an elcctric contact ring 21 npon a, hollow spindie22 Which is jonrnaled in the frame 5. In order to rctain the arms ofthis spring in forciblo contact with the ring I have providcd springs 23and 24 which are 10- cated up0n adjustnble screwS 25 and 26 in the side10 of the frame;

At the end of plug 6 I have locntcd the usual contact plate 27 which isconnectcd by a conductor strip 28 to a contact spring 29 located at thetop of the side 11 of the frame. This contact spring is identical Withspring 18, and the elements thereof bear the same referencc nnmcrals inboth instances. Thc rollers of spring 29 bear upon contact ring 30Iocated near the upper and of hol- 10W spindle 22, scrcws 31 and 32sccuring Wires 33 and 34 of the device t0 ioe connected to the swivelplug, these wircs passing through the hollow spindle as shown.

At its lower and a ring 35 is located on the spindle.

nation of a frame consisting of sides, a, top,

and a bottom, a hollow wire carrying spin dle rotatively mounted in thetop and hottom of the fraine hetwecn the sidos, contact springzsextending from opposite sidcs of the frame and in eectrica] connectionWith the rotatively mounted spindlc, and a plng locatcd at one end ofthe frame and electrically connected With the springs.

2. A swivel piug connecter comprising a frame consisting of sidcs, atop, and a hot- =om. a hollow'wire carrying spindle rotativclymoun-ted,in the top and. hottom of the frame between the sides, contactsprings oxtending from opposite sidcs of' the frame and in electricalconnccti-on with the rotatively monnted spindle. meansior adjuisting thetension of the spfings, and a ping located at one and of the frame andcloctrically connected with the springs.

In witness whereof, I affix niy signature in the presence of twowitnesscs.

. EDWARD DEWALD, SR. Witnesses:

EDWARD DEWALD, Jr., WILLIAM JOHN SCHLIZ.

Beneath this ring and jour naled in the sides 10 and 11 are, two r0llcrs

